不同添加剂对白酒糟发酵饲料营养价值的影响研究

Effect of Additives on the Nutritional Value of Feed Made from Distillers Grains

白酒糟是白酒酿造副产物,利用酒糟发酵生产动物饲料是实现其资源化利用的有效途径。为探究不同添加剂对白酒糟发酵饲料营养价值的影响,本试验设计了8种不同的添加剂,设置了3%、5%、8%的3个不同浓度梯度进行研究。通过分析比较粗蛋白、粗脂肪、灰分、总糖、纤维素、氨基酸组成等,评价不同添加剂对酒糟饲料的影响,筛选得到最适宜的添加剂。试验结果显示,D-2(5%产朊假丝酵母)组取得的效果最理想。其有机组分分别为:粗蛋白18.28%,粗脂肪8.96%,灰分9.63%,固态总糖4.27%,液态总糖0.34%,纤维素24.25%,碳水化合物63.13%,淀粉18.26%,EAA为5.993%。

Distillers grains are the by-product of liquor-making.Using distillers grains as raw materials to produce feed is one of the important ways to make full use of the resources.To investigate the effect of different additives on the nutritional value of the feed made from distillers grains,eight additives with three concentration gradients(3%,5%and 8%)were adopted for the study.By com-paring the crude protein,crude fat,ash,total sugar,crude fiber,and amino acid composition of the feed,the most suitable additive was selected.The results showed that group D-2(5%Candida utilis)achieved the best effect.Its organic composition was as fol-lows:18.28%crude protein,8.96%crude fat,9.63%ash,4.27%total solid sugars,0.34%total liquid sugars,24.25%cellulose,63.13%carbohydrates,18.26%starch,and 5.993%EAA.